1980 U.S. Mint Set 13 Coins

The big 13-coin 1980 mint set contains three Susan B. Anthony dollars — from the Philadelphia (no mintmark), Denver (“D”) and San Francisco (“S”) mints. Because the petite Anthony dollar was only 2mm larger than the quarter and had the same copper-nickel tone, the coins were often confused in commerce. Even the Anthony dollar’s 11-sided edge (meant to assist the blind in distinguishing it from the quarter) didn’t seem to help the public enough.